单项选择题
Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.
A.open the bypass line
B.cut in the lube oil cooler
C.pressurize the lube oil system
D.top off the expansion tank
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The small end of the connecting rod is attached to the piston with a （）.
A.crankpin
B.sliding wedge
C.wrist pin
D.torque bashing -
单项选择题
Increasing the load on an engine equipped with a constant speed mechanical governor, will cause the engine speed to initially （）.
A.increase
B.decrease
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单项选择题
A dirty diesel engine oil filter element can best be detected by （）.
A.visual inspection of the elements
B.the pressure drop across the filter
C.high lube oil sump temperature
D.decrease in oil viscosity from the filter
